Our Business

Moving the needle on sustainability and climate change are KPIs for all of us. Sustainability is at the heart of everything we do; it’s embedded in our core values, the services we provide and our embrace of the circular economy.

Who we work with and what sets us apart

We’re the go-to partner for Global 2000 businesses, OEMs, hyperscale cloud providers, financial services firms, technology innovators and more.

Businesses that want to improve the way they manage their technology asset lifecycle turn to us. With a true global reach, we offer teams where you are, who understand how you work and what you need.

Our 40+ owned facilities across 20+ countries offer unmatched service level consistency, consistent commercials, lower logistics costs, local compliance experts in-region, support in local time zones and languages, and a deep understanding of transboundary movement globally.

In the landscape of IT services where many providers can seem the same, TES stands apart.

Find out more about our business and capabilities in the short video below:

HubSpot Video


Sustaining Tomorrow - Our strategy

The privacy, brand, intellectual property, data and trust of our customers



  • Data security
    Provide robust systems, standards and certifications to achieve zero data leakages

  • Ethics and governance
    Demonstrate our values in action throughout our operations and business relationships

  • Business sustainability and thought leadership
    Lead engagement in best practices to deliver service excellence and be regarded as a strategic partner of choice

  • Responsible supply chain
    Engage and communicate our standards to encourage improved responsible, ethical and sustainable performance

Our natural environment and the use of scarce resources



  • Extending life
    Maximize the circularity of materials and equipment to reduce the demand on primary resources

  • Waste management
    Reduce, reuse, recycle to eliminate waste to landfill

  • Transparency and accountability
    Provide traceability to ensure materials are managed in an environmentally sound manner

  • Natural resource use
    Conserve energy and adopt renewables to reduce emissions


A safe, diverse and inclusive workplace and community for people to thrive



  • Engage, develop and motivate our people
    Foster openness, train and build capability with competence in our people

  • Health and safety
    Continue to improve the safety and health of our work environments to achieve zero harm and improve our employee well-being

  • Diversity and inclusion
    Support or promote a diverse and inclusive workplace and supply chain

  • Community engagement
    Engage and support the communities in which we operate

Our history


SK ecoplant acquires a 100% stake in TES


New facilities opened:
Birmingham, UK
Port of Rotterdam, Netherlands



New facilities opened:
TES B, Battery Recycling, Singapore
Virginia & Seattle, USA
Hong Kong

Custom Controllers

Green Li-Ion


Technology Supplies International (TSI) UK


New facilities opened:

EGR, Germany

Introduced Managed Deployment capabilities in Europe


​​TES rebranded



Expanded TES's service offerings into Europe


New facilities opened:

TES is acquired by Navis Capital​


New facilities opened:

TES acquisition of JRI
Expansion into ITAD


New facilities opened:
New Zealand
Hong Kong


TES was founded in Singapore

New facilities opened:
China (Shanghai, Beijing, Guangzhou and Suzhou)
UK (Scotland)

Our team

TES - Terence Ng

Terence Ng

Executive Chairman

Terence is the Founder and Executive Chairman of TES. He has over two decades of experience in the environmental sector.

Prior to establishing TES in 2005, he was the Director of Engineered Products & Services Pte Ltd, Engineered Products & Services Sdn Bhd, and Ditron Engineering Sdn Bhd. Terence currently serves on the boards of several private companies all over the world.

TES _ Gary Steele (white background)

Gary Steele

Group Chief Executive Officer

Gary has overall responsibility for business strategy, communicating with stakeholders, championing corporate social responsibility (CSR) and ensuring the senior leadership team is positioned to excel.

He has a strong passion for people supported by extensive experience in leading business teams through periods of continuous growth and improvement.

Gary joined TES following the acquisition of his ITAD business, JRI. Prior to JRI, Gary founded VOX Solutions, focusing on the insurance replacement market by helping insurers seamlessly manage IT and mobile phone claims. He successfully sold and exited VOX in 2005.

TES _ Eric Ingebretsen (white background)

Eric Ingebretsen

Group Chief Commercial Officer

Eric has responsibility for TES’ global sales and marketing efforts.  He has a deep passion for harnessing the power of storytelling and aligning teams to hit the company’s growth targets.

Prior to TES, Eric held leadership positions in marketing and business development at SkyTel, Eaton Aerospace, Arrow Electronics and C Spire. 

Jae Sang Lee

Jae Sang Lee

Group Chief Financial Officer

Jae Sang is responsible for providing strategic leadership in Group finance, asset and capital management, risk management, governance, as well as stakeholder and investor relations

His passion and extensive experience in digital transformation has driven many businesses through continuous improvement and growth. Before joining TES, Jay served as vice president, head of global business for SK magic and SK networks, following his role as chief financial officer for SK Securities. He earned his Ph.D. from Emory University.

TES - Stuart Hebron

Stuart Hebron

Group Chief Information Officer

Stuart's goal is to leverage technology to address evolving business challenges and deliver real-world solutions. This goal has been constant throughout his IT business leadership positions, focusing on the navigation, strategic development and implementation of complex solutions, focused on operational excellence and high-value outcomes.

In the last 12 years, Stuart been influential and instrumental in the growth of TES, applying a broad and deep understanding of technology, systems, processes and best practices.

TES _ Thomas Holberg

Thomas Holberg

Global Vice President of Battery Operations

Thomas has over 25 years of experience in the e-waste and ITAD industry and joined TES following the acquisition of Dataserv Group in 2016 where he was Group COO and also co-shareholder after an MBO in 2006.

Before he joined Dataserv, Thomas worked in various leadership roles for major waste management companies in Germany.

TES _ Stephen Graham

Steve Graham

Vice President, EMEA

Steve is responsible for managing and expanding our European IT Lifecycle Services business through a strategy of organic and acquisitive growth.

Bringing with him a breadth of market knowledge across the full market spectrum, Steve has a particular focus on providing end-to-end services to OEMs and channel providers, deploying and configuring IT and telecoms products into regions to support customer demand.

If you want to talk about how we can help, get in touch